Bowmalloy 36302 Hex Head Cap Screw 1/4-28 X 3/4 in Grade 9

Product Description

The BOWMALLOY 36302 is a fully threaded hex head cap screw designed for high-strength fastening applications in mechanical, structural, and industrial assemblies. Manufactured from Grade 9 alloy steel, this fastener delivers tensile strength well above standard Grade 5 and Grade 8 hardware, making it suitable for demanding load-bearing connections. The 1/4-28 fine thread pitch provides excellent holding power in tapped metal assemblies where vibration resistance is a priority. A zinc-plated clear chromate finish offers a baseline level of corrosion resistance for general indoor and light outdoor use. Licensed tradespeople and maintenance technicians working on HVAC equipment, machinery mounts, and electrical panel frames will find this screw fits standard 1/4-28 tapped holes without modification.

This fastener is suited for residential and light commercial applications where Grade 9 alloy steel strength is specified. The fine-thread 1/4-28 configuration is commonly used in precision mechanical assemblies, motor mounts, bracket hardware, and equipment panels. The 3/4-inch length under the head accommodates typical sheet metal and light structural connections. Sold in a package quantity of 100 units, this screw is appropriate for service vans, shop stock, and bulk fastener inventory for technicians who regularly replace or install equipment hardware.

Key Features

• Grade 9 alloy steel construction for high tensile strength above standard Grade 8 fasteners
• 1/4-28 fine thread for superior vibration resistance in tapped metal assemblies
• Fully threaded shank provides maximum thread engagement along the entire 3/4-inch length
• Zinc-plated clear chromate finish for corrosion resistance in general service environments
• Hex head drive compatible with standard hex keys, sockets, and wrenches
• Package quantity of 100 units supports bulk stocking for field and shop use

Compatibility

Designed as a direct-fit fastener for any application requiring a 1/4-28 fine-thread hex head cap screw with a 3/4-inch length under the head in Grade 9 alloy steel.

Installation Notes

Installation should be performed by qualified technicians following applicable mechanical and electrical codes. Power down and de-energize any equipment before replacing or installing fasteners in live assemblies. Use a calibrated torque wrench when the application specifies a torque value to avoid over-tightening alloy steel fasteners in tapped holes. Inspect threads for damage before installation and ensure the receiving tapped hole matches the 1/4-28 thread specification.